题目内容

-________ I finish off the milk, Mum?

-I'm afraid you ________.It's good for your health.


  1. A.
    Can…can't
  2. B.
    May…may not
  3. C.
    Must…needn't
  4. D.
    Must…must
D
must情态动词,表示“必须”.I'm afraid you must.句意为“恐怕你必须要喝完.”
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